12h34m03.029s, 07° 41′ 56.90″| NGC 4526 | |
|---|---|
Supernova SN 1994D (lower left) in the outskirts of NGC 4526's central disk
| |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h34m 03.029s[1] |
| Declination | +07° 41′ 56.90″[1] |
| Redshift | 0.001494±0.000027 |
| Heliocentric radial velocity | 448±8 km/s[2] |
| Distance | 55±5 Mly (16.9±1.6 Mpc)[3] 52 Mly (15.8 Mpc)[4] |
| Apparent magnitude (V) | 10.7[2] |
| Characteristics | |
| Type | SAB(s)0°[5] |
| Apparent size (V) | 7′.2 × 2′.4[2] |
| Other designations | |
| NGC 4560,[2] UGC 7718,[2] PGC 41772[2] | |
NGC 4526 (also listed as NGC 4560) is a lenticular galaxy with an embedded dusty disc, located approximately 55 million light-years from the Solar System[3] in the Virgo constellation and discovered on 13 April 1784 by William Herschel.[6]
The galaxy is seen nearly edge-on. The morphological classification is SAB(s)0°,[5] which indicates a lenticular structure with a weak bar across the center and pure spiral arms without a ring.[7] It belongs to the Virgo cluster and is one of the brightest known lenticular galaxies.[5] In the galaxy's outer halo, globular cluster orbital velocities[8] indicate abnormal poverty of dark matter: only 43±18% of the mass within 5 effective radii.
The inner nucleus of this galaxy displays a rise in stellar orbital motion that indicates the presence of a central dark mass. The best fit model for the motion of molecular gas in the core region suggests there is a supermassive black hole with about 4.5+4.2
−3.0×108 (450 million) times the mass of the Sun.[9] This is the first object to have its black-hole mass estimated by measuring the rotation of gas molecules around its centre with an astronomical interferometer (in this case the Combined Array for Research in Millimeter-wave Astronomy).
Supernova SN 1969E was discovered in this galaxy in 1969, reaching a peak magnitude of 16.[10] In 1994, a type Ia supernova was discovered about two weeks before reaching peak brightness. Designated SN 1994D, it was caused by the explosion of a white dwarf star composed of carbon and oxygen.[11]
Stars
Spaceflight
Outer space
Solar System
